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Atheros Names William J. McFarland Chief Technical Officer

SUNNYVALE, Calif., Nov. 18, 2004 – Atheros Communications, Inc. (NASDAQ: ATHR), a leading developer of advanced wireless LAN (WLAN) chipsets, today announced that William J. McFarland has been appointed as Atheros’ vice president and chief technical officer (CTO). McFarland joined Atheros in 1999 as senior engineer, RF systems.

McFarland was promoted to Director of Algorithms and Architecture in 2000. In this role, he led a team developing digital signal processing algorithms, defined radio and digital architectures, and represented Atheros in regulatory and standardization efforts. As the newly appointed CTO, McFarland manages a team that investigates new technologies and product opportunities. He will help Atheros expand into new markets that take advantage of the company’s expertise in combining complex analog and digital components.

“We are very pleased to have a world radio expert like Bill on our team,” said Craig Barratt, president and chief executive officer of Atheros Communications. “Bill’s appointment as vice president and CTO enables the company to continue to deliver high performance, low-cost wireless products to market. His deep understanding of radio technology will enable Atheros to extend its technology leadership position in the WLAN market as well as into new wireless technologies.”

Prior to joining Atheros Communications, McFarland spent 14 years at the Hewlett Packard
Research Lab. He designed analog ICs for high-speed digital test equipment, fiber optic communications links, and wireless communications. In 1993, McFarland became manager of the integrated radio research group, where he led the creation of one of the worlds’ first integrated CMOS radios. McFarland has published over 35 papers and holds 18 patents. McFarland received a B.S. in Electrical Engineering from Stanford University in 1983, and a M.S. in Electrical Engineering from the University of California at
Berkeley, in 1985.

About Atheros Communications, Inc.

Atheros Communications is a leading developer of semiconductor system solutions for wireless communications products. Atheros combines its wireless systems expertise with high-performance radio frequency (RF), mixed signal and digital semiconductor design skills to provide highly integrated chipsets that are manufacturable on low-cost, standard complementary metal-oxide semiconductor (CMOS) processes. Atheros technology is being used by a broad base of leading customers, including personal computer and networking equipment manufacturers. For more information, visit www.atheros.com or send email to info@atheros.com.

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Atheros and the Atheros logo are trademarks of Atheros Communications, Inc. All other trademarks mentioned in this document are the property of their respective owners.

FORWARD-LOOKING STATEMENTS:
Except for the historical information contained herein, the matters set forth in this press release, including statements regarding Mr. McFarland’s new role as CTO of Atheros and the anticipated benefits of his serving as CTO, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially, including, but not limited to, whether Atheros is successful in expanding into new markets that take advantage of Atheros’ expertise in combining complex analog and digital components and in extending its technology leadership position in the WLAN market as well as into new wireless technologies; difficulties in identifying and developing new products and technologies; the effects of competition; general economic conditions; and other risks detailed in Atheros’ Quarterly Report on Form 10-Q for the quarter ended September 30, 2004 as filed with the SEC and in other reports filed with the SEC by Atheros from time to time. These forward-looking statements speak only as of the date hereof. Atheros disclaims any obligation to update these forward-looking statements.

For press and analyst inquiries contact: Cheryl Patstone, 408-773-5344, cheryl@atheros.com or Greg Wood, A&R Partners, 650-762-2838, gwood@arpartners.com.

Press Release